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RE: Example of AND-EQUALS

From: Khedr, Waleed <Waleed.Khedr_at_FMR.COM>
Date: Thu, 27 Jun 2002 11:41:50 -0800
Message-ID: <F001.0048ACAD.20020627114150@fatcity.com>


AND_EQUAL
The AND_EQUAL hint explicitly chooses an execution plan that uses an access path
that merges the scans on several single-column indexes. The syntax of the AND_
EQUAL hint is:

Look at ch7 in Oracle8i Designing and Tuning for Performance

Regards,

Waleed

-----Original Message-----
Sent: Thursday, June 27, 2002 3:26 PM
To: Multiple recipients of list ORACLE-L

Hi all,

Struggling w/Oracle Support over a possible BUG on 8.1.6.0.0 and Solaris 2.8 where the shared pool can become fragmented by statements which have "AND-EQUALS" access. This has the effect of eventually hitting ORA-4031s.

Can someone explain what an "AND-EQUALS" access would be? I assume it would be a path chosen by the optimizer, but I can't find any mention of it on Tahiti. Perhaps provide an example?

TIA!

Rich Jesse                           System/Database Administrator
Rich.Jesse_at_qtiworld.com              Quad/Tech International, Sussex, WI USA

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Author: Jesse, Rich
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Author: Khedr, Waleed
  INET: Waleed.Khedr_at_FMR.COM
Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
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